Có 11+ tài liệu thuộc chủ đề "Rhodamine B"
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Xác định Rhodamine B trong thực phẩm bằng kỹ thuật sắc ký lỏng hiệu năng cao. Khoa Hóa học Chuyên ngành: Hóa Phân tích. Chọn được các điều kiện phù hợp cho việc xác định Rhodamine B có trong các mẫu thực phẩm bằng kĩ thuật HPLC sử dụng detector UV- Vis.. Đánh giá được phương pháp phân tích như...
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DOI:10.22144/ctu.jvn.2019.059 TỔNG HỢP VÀ NGHIÊN CỨU HOẠT TÍNH XÚC TÁC PHÂN HỦY RHODAMINE B CỦA VẬT LIỆU ZIF-67 DƯỚI SỰ HIỆN DIỆN CỦA PEROXYMONOSULFATE Đặng Huỳnh Giao 1. Synthesis and investigation into the catalytic activity of ZIF-67 for rhodamine B degradation in presence of peroxymonosulfate Từ khóa:. Phân hủy, rhodamine B, tổng hợp, xúc tác, ZIF-67. rhodamine B, synthesis, ZIF-67....
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NGHIÊN CỨU QUY TRÌNH XÁC ĐỊNH ĐỒNG THỜI AURAMINE O VÀ RHODAMINE B TRONG MỘT SỐ MẪU GIA VỊ BẰNG PHƯƠNG PHÁP SẮC KÝ LỎNG. Cơ sở lý thuyết về phương pháp sắc ký lỏng hiệu năng cao (HPLC. Nguyên tắc của các quá trình sắc ký. Phân loại sắc ký hấp phụ. Một số đại lượng đặc trưng của...
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Spectrophotometric detection of rhodamine B in tap water, lipstick, rouge, and nail polish samples after supramolecular solvent microextraction. Abstract: A simple and sensitive supramolecular solvent-based dispersive liquid–liquid microextraction method was described for the separation/preconcentration and spectrophotometric detection of rhodamine B. The microextraction method, which was realized at ambient temperature for the detection of rhodamine B, was carried out by using...
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doi:10.3906/kim-2002-59 h t t p. H 2 O 2 and initial pH) on the simultaneous elimination of RB and AR14. The values of the regression coefficient for RB and AR14 were determined as 98.48 and 98.67 percent, respectively, revealing the reliability of the obtained polynomial models to predict decolorization efficiencies. 126.89 mg/L and pH = 3.71), degradation efficiencies of RB...
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Among these processes, the adsorption technique has widely practised due to its effectiveness, simplicity, high efficiency, and availability of a wide range of materials [11–15]. In most of the investigation done in past, dye adsorption studies onto carbon nanotubes were exclusively carried out for a single pollutant system and relatively less work is published narrating adsorption of dyes from a...
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By preparing PVA/PVP blend hydrogels, the properties of the two polymer components can be advantageously combined [6, 10]. For example, the preparation of PVA- based hydrogels with added PVP polymer improves the mechanical properties of the resulting hydrogel and decreases the friction coefficient [6].. One of the most important problems of the present century is water pollution and a decrease...
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SYNTHESIS OF MIXED-METAL MIL(Ti-Fe). FROM VIETNAM ILMENITE ORE AND ITS APPLICATION FOR DEGRADATION OF DYE. Abstract: In this work, the mixed-metal metal-organic frameworks MIL(Ti-Fe) were synthesized by the hydrothermal method. The influence of various vital parameters such as pH of the dye solution, initial dye concentration, adsorption time, and amount of the catalyst on the dye removal efficiency was investigated....
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Characterization of a Cu 2+ -selective fluorescent probe derived from rhodamine B with 1,2,4-triazole as subunit and its application in cell imaging. It exhibited high selectivity and sensitivity for Cu 2+ in ethanol–water solution (9:1, v:v, pH 7.0, 20 mM HEPES) and underwent ring opening. A prominent fluorescence enhancement at 570 nm was observed in the presence of Cu 2+...
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After treatment of sepiolite, the surface area of the solid is significantly improved while the material structure still remains. Both fresh and treated sepiolites were used as adsorbents for the adsorption of rhodamine B in water. Experimental results indicate that the adsorption of rhodamine B for sepiolite was fitted to the Langmuir and Freundlich adsorption models. The most hazardous issue...
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In this paper, Phu Yen diatomite was used as adsorbent for adsorption rhodamine B (RB) dye in aqueous solution. The analysis of experimental adsorption data showed that the adsorption followed Langmuir isotherm model and pseudo-second-order kinetic equation. Based on the adsorption constant in the Langmuir isotherm (K L. thermodynamic parameters (G o , H o and S o ) for...